Answer:
During Tang rule, China had its greatest influence on eastern Asia and, at the same time, carried out active trade with peoples across Eurasia. For more than 100 years, the Tang empire stretched deep into Central Asia, and various aspects of Chinese culture spread to Korea and Japan.
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False.
The amount of years for service varied and was decided by the contractor, for adults it was typically around 4 to 7 years but it wasn't always only seven years.
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<span>The Mongols were a nomadic race of people who are from
Mongolia as well as China’s Inner Mongolia Autonomous Region. They were expert
riders, hunters and archers. Originally,
they were group of independent tribes until they were united by Genghis Khan
and later embarked on a campaign of conquest.
Due to their tactics and speed on horseback, they were easily able to
defeat other armies which led to the establishment of the Mongol Empire. It was composed of Mongolia, North China,
Turkmenistan, Afghanistan and Northern India.
After the Genghis Khan his descendants conquered more countries but
eventually their power declined and some of the Mongols were absorbed by the
countries they had conquered.</span>